All things are obviously designed for use—all the innumerable hosts of living creatures for specific purposes; the natures of many are known to us now; every day is adding to our knowledge, and a time will assuredly come when the nature and purposes of the most ferocious of wild animals and the most venomous of serpents will be clearly understood and applied to their proper uses. It is, therefore, the obvious design of the Creator that the negro should be useful, should labor, should be a producer, and as his organism forbids this, if left to himself, it is evidently intended that he should be in juxtaposition with the superior Caucasian. It is equally obvious that the tropical latitudes endowed with such exuberant fertility were designed for cultivation, for use, for the growth and production of those indigenous products found nowhere else except within the tropics and tropicoid regions of the earth. The organization of the Caucasian utterly forbids physical labor under a tropical sun. He may live there, enjoy life, longevity, the full and healthy spring of all his faculties, without lassitude or any of that weight upon his energies which ill-informed persons have supposed followed a residence in these climes, but he can not cultivate the earth or grow the products of the soil by his own labor. The negro organism, on the contrary, is adapted to this production, and the rays of a vertical sun stimulate and quicken his energies, instead of prostrating them, as in the case of the former. In another place this subject will be fully discussed, and therefore it will be sufficient in this place to simply state the fact, that the labor of the negro can alone grow the indigenous products of the tropics, and without this labor the great tropical centre of the American continent must consequently remain a barren waste.